Synthesis, Structure and Characterization of [Cu(2,2′-bpy)_2][{Cu(2,2′-bpy)_2}_2W_(12)O_(40)(H_2)]·4H_2O  

作　　者：何丽雯 林碧洲 柳学忠 黄修锋 柏玲 

机构地区：[1]College of Materials Science and Engineering, Huaqiao University

出　　处：《Chinese Journal of Structural Chemistry》2007年第12期1435-1440,共6页结构化学（英文）

基　　金：This work was supported by the Natural Science Foundation of Fujian Province (No. E0420001) and NCETFJ.

摘　　要：An organic-inorganic compound [Cu（2,2＇-bpy）2][{Cu（2,2＇-bpy）2}2W12O40（H2）]·4H2O （Mr = 4048.00） was prepared from the hydrothermal reaction of Na2WO4.2H2O, CuC12·2H20, 2,2＇-bipyridine （2,2＇-bpy） and H2O at 160 ℃ for 4 days. The compound crystallizes in the monoclinic system, space group P21/n with a = 18.9196（8）, b = 20.4212（8）, c = 21.8129（9）A, β = 96.992（3）^o, V= 8365.0（6）A3, Dc= 3.214 g/cm^3, Z = 4μ（MoKct） = 17.269mm^-1 and F（000） = 7324. Of the 119837 total reflections, 17315 were unique （Rint = 0.0489）. The final R = 0.0385 and wR = 0.0770 for 11142 observed reflections with I 〉 2a（I）. Single-crystal X-ray diffraction reveals that the structure is composed of [（Cu（2,2＇-bpy）2}2W12040（H2）]^2- anions, discrete [Cu（2,2＇-bpy）2]^2＋ cations and lattice water molecules, and the anion is made up of a {W12O40（H2）}^6- α-Keggin core decorated with two [Cu（2,2＇-bpy）2}^2＋ groups through bridging oxygen atoms.An organic-inorganic compound [Cu（2,2＇-bpy）2][{Cu（2,2＇-bpy）2}2W12O40（H2）]·4H2O （Mr = 4048.00） was prepared from the hydrothermal reaction of Na2WO4.2H2O, CuC12·2H20, 2,2＇-bipyridine （2,2＇-bpy） and H2O at 160 ℃ for 4 days. The compound crystallizes in the monoclinic system, space group P21/n with a = 18.9196（8）, b = 20.4212（8）, c = 21.8129（9）A, β = 96.992（3）^o, V= 8365.0（6）A3, Dc= 3.214 g/cm^3, Z = 4μ（MoKct） = 17.269mm^-1 and F（000） = 7324. Of the 119837 total reflections, 17315 were unique （Rint = 0.0489）. The final R = 0.0385 and wR = 0.0770 for 11142 observed reflections with I 〉 2a（I）. Single-crystal X-ray diffraction reveals that the structure is composed of [（Cu（2,2＇-bpy）2}2W12040（H2）]^2- anions, discrete [Cu（2,2＇-bpy）2]^2＋ cations and lattice water molecules, and the anion is made up of a {W12O40（H2）}^6- α-Keggin core decorated with two [Cu（2,2＇-bpy）2}^2＋ groups through bridging oxygen atoms.

关 键 词：POLYOXOTUNGSTATE copper compound hydrothermal synthesis crystal structure 

分 类 号：O621.25[理学—有机化学]